Does anybody know of a good audio filter to remove the background tape motor noise from my recordings?
The only thing provided with VideoStudio is 'remove noise' but this tends to remove the audio I want to keep as well as the motor noise.
Audio noise removal - any useful tools?
Moderator: Ken Berry
None of these filters are perfect.
None of these filters are perfect.
I haven't tried the Visual Studio noise filter so I can't say it's better, but Goldwave ($45) has a noise filter. You can try Goldwave free.
There are lots of programs around that "try" to remove noise. It's a very common feature in audio editing progrms. Most of them work by taking a noise-only sample, and comparing that to the noise and audio together. If there is a good "signal to noise ratio", you should have good results removing the noise. In this case, you can usually only hear the noise during the quite parts. The program can just turn-off the sound completely when there is no program-sound. If you have a strong audio signal, you should be able to remove the tape-motor noise. You might have to experiment with the filter settings to get the best results.
If the noise is loud, or the good sound is quite, noise reduction can be "difficult". It can be darn near impossible for the computer to extract the "good sound" from the sound & noise mixed together. Lets say you've got an interview where someone rides by on a loud motorcycle... you can't remove that noise! If you've got a recording of a symphany with lots of quiet-delicate parts, you might not be able to remove the noise without removing or distorting those quiet parts. If you record a rock concert, you'll never hear the tape-motor noise (very high signal to noise), but you'll never be able to remove the crowd noise (low signal to noise).
Noise reduction can turn good audio onto very-good audio. It can't help if the noise is very bad... the cure can be worse than the desease.
I haven't tried the Visual Studio noise filter so I can't say it's better, but Goldwave ($45) has a noise filter. You can try Goldwave free.
There are lots of programs around that "try" to remove noise. It's a very common feature in audio editing progrms. Most of them work by taking a noise-only sample, and comparing that to the noise and audio together. If there is a good "signal to noise ratio", you should have good results removing the noise. In this case, you can usually only hear the noise during the quite parts. The program can just turn-off the sound completely when there is no program-sound. If you have a strong audio signal, you should be able to remove the tape-motor noise. You might have to experiment with the filter settings to get the best results.
If the noise is loud, or the good sound is quite, noise reduction can be "difficult". It can be darn near impossible for the computer to extract the "good sound" from the sound & noise mixed together. Lets say you've got an interview where someone rides by on a loud motorcycle... you can't remove that noise! If you've got a recording of a symphany with lots of quiet-delicate parts, you might not be able to remove the noise without removing or distorting those quiet parts. If you record a rock concert, you'll never hear the tape-motor noise (very high signal to noise), but you'll never be able to remove the crowd noise (low signal to noise).
Noise reduction can turn good audio onto very-good audio. It can't help if the noise is very bad... the cure can be worse than the desease.
-
maddrummer3301
- Posts: 2507
- Joined: Fri Dec 10, 2004 10:24 pm
- Location: US
Hi,
If you have or purchase Nero 6 Ultra Edition (retail or download)
the program "Nero Wave Editor" has filters that are very good.
This would be an economical answer and a good investment.
Nero 6 Ultra Edition is a good suite of programs.
60Hz hum, 120hz Hum, & tape hiss are the most common filters
and are the easiest to remove because they are constant
& predictable frequencies.
If a motorcycle drives by in the video your in real trouble.
Hope this helps,
MD
If you have or purchase Nero 6 Ultra Edition (retail or download)
the program "Nero Wave Editor" has filters that are very good.
This would be an economical answer and a good investment.
Nero 6 Ultra Edition is a good suite of programs.
60Hz hum, 120hz Hum, & tape hiss are the most common filters
and are the easiest to remove because they are constant
& predictable frequencies.
If a motorcycle drives by in the video your in real trouble.
Hope this helps,
MD
